Title:
アニオン性含フッ素乳化剤の回収方法
Document Type and Number:
Japanese Patent JP6447628
Kind Code:
B2
Abstract:
To provide a method for recovering an acid of an anionic fluorinated emulsifier with a high yield from a basic ion exchange resin having a nonionic surfactant physically adsorbed thereon and having the anionic fluorinated emulsifier adsorbed thereon. A method for eluting and recovering an acid of an anionic fluorinated emulsifier from a basic ion exchange resin having a nonionic surfactant physically adsorbed thereon and having the anionic fluorinated emulsifier adsorbed thereon, which comprises a step (1) of bringing the basic ion exchange resin into contact with a water-soluble organic solvent and a step (2) of recovering the acid of the anionic fluorinated emulsifier from the basic ion exchange resin from which the ionic surfactant is eluted in the step (1).
Inventors:
High Masahiro Sawa
Shigeru Aida
Shigeru Aida
Application Number:
JP2016511894A
Publication Date:
January 09, 2019
Filing Date:
March 30, 2015
Export Citation:
Assignee:
AGC Inc.
International Classes:
B01J49/57; C09K23/42; B01J41/05; B01J41/07; B01J41/14; B01J41/16
Domestic Patent References:
| JP2002516885A | ||||
| JP2003094052A | ||||
| JP2007098240A |
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai